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silicon 音标拼音: [s'ɪləkən] n. 硅,硅元素 矽,矽元素 silicon 金属-氮化物-氧化物-硅 MNOS silicon 金属-铝-氧化物-硅(结构) MAOS silicon 矽 silicon n 1: a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors [synonym: {silicon}, {Si}, {atomic number 14}] Silicon \Sil"i*con\, n. [See {Silica}.] (Chem.) A nonmetalic element analogous to carbon. It always occurs combined in nature, and is artificially obtained in the free state, usually as a dark brown amorphous powder, or as a dark crystalline substance with a meetallic luster. Its oxide is silica, or common quartz, and in this form, or as silicates, it is, next to oxygen, the most abundant element of the earth's crust. Silicon is characteristically the element of the mineral kingdom, as carbon is of the organic world. Symbol Si. Atomic weight 28. Called also {silicium}. [1913 Webster] 1. "substrate") for most {integrated circuits}. 2. {microprocessor}-based computer systems (compare {iron}). Contrast: {software}. See also {sandbender}. [{Jargon File}] (1996-05-28) silicon: n. Hardware, esp. ICs or microprocessor-based computer systems (compare iron). Contrasted with software. See also sandbender. silicon
Symbol: Si Atomic number: 14 Atomic weight: 28.086 Metalloid element belonging to group 14 of the periodic table. It is the second most abundant element in the Earth's crust, making up 25.7% of it by weight. Chemically less reactive than carbon. First identified by Lavoisier in 1787 and first isolated in 1823 by Berzelius.
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